Not long ago we staged NOTOS 2015. The exhibition was generally praised for its innovative features, the ability, imagination and friendship of its people, etc. FEPA News called it “a milestone in the organization of future philatelic exhibitions for many reasons” (read it here).
The whole story on NOTOS 2015 is unfolded on the exhibition website which is still active: https://hps.gr/notos2015/
NOTOS 2015 was a 1200-frame exhibition that basically served the European South.
NOTOS 2021 will be a 2000-frame exhibition for the whole of Europe.